The old library on google code has bugs (check comments for more informations), please consider using either the new NModbus4 library, or you can download the old code from this repository: https://github.com/mesta1/nmodbus.Once you extract the sources you can open the solution file, located in the src folder. Open(); // create modbus master IModbus Serial Master master = Modbus Serial Master.Actually, when you synchronize with the Exchange Server mailbox, OST file is automatically converted into Outloook file and is updated.
Unfortunately for me (but fortunately for you readers), I personally have had the joy of encountering many of these problems during and after updating one particular Mac Book Pro to Mac OS Sierra 10.12, so I have very recent extensive firsthand experience with troubleshooting much of what is covered here.
To be perfectly clear this is meant to be a compilation for potential issues experienced with the mac OS Sierra update process.
Most of this will not be encountered by the average user, and is in no way suggestive of what to expect during the Sierra update or installation process.
In such cases, you require to manually convert ost to pst using an advance third-party tool.
If any of the above said method does not help you to fix the error, it may be the case of corruption and you need to repair your file.
NModbus contains many samples included in the source code. Create Rtu(port); byte slave Id = 1; ushort start Address = 1; ushort num Registers = 5; // read five registers ushort registers = master.